By now it's clear that the majority of people reject the idea that wealth is proportional to the trustworthiness of a node, so how about this: instead of directly giving supernode status to wealthiest people we vote for supernodes (which may not necessarily be wealthy) with our money, in the ratio of 1 coin = 1 vote. This way poorer people can band together and surpass the voting power of the rich ones to elect a supernode of their choosing. It also allows the rich to relinquish their supernode power and give it to a more trusted member of the network. Voting would be done with a special transaction which basically says that any money held by the sending address is a vote for node X.
Would this work better?
For reference, here is the original system: http://solidcoin.info/solidcoin-most-secure-currency.php